The safe and easy bet is one of the 5W30 multigrades. But that's a bit boring.
I would mix the Magnatec 0W20 with the VR1 60, Mix the 5W20 with the 20W50, and in summer run the monograde SAE30 as is. I would aim for a thick 30 grade viscosity, like a KV100 = 11.5 cSt. Perfect of a 90's Toyota.
The 10W30 and 10W40 are good summer oils or for top-ups.
Pour them all into a big barrel, along with liqui moly mOs2 & ceratec, a splash of MMO, a sprinkle of Kreen and a splash of AutoRX. Give it a stir and top up from your barrel of magic mix, then send samples for analysis every 100 miles.
Deal?
Oil change will be done this Saturday. I had forgotten what the current oil is but thanks to my wife she dates the oil bottles Pennzoil Platinum High Mileage